Beyonce: How DARE Amber Rose Mess with Me Right Now!

This is a beautiful time in Beyonce's life. She's due to give birth to her twins any minute now, she's as beloved as ever ...

And Amber Rose, of all people, had the nerve to try to rain on her parade.

Earlier this week, Amber tweeted a message that read "Hey @Beyonce I got a secret. I am Becky with the Short Hair. #iaintsorry #muvalemonade."

She's referring, of course, to Beyonce's legendary Lemonade album, and her "Becky with the good hair" lyric -- this Becky apparently being Jay Z's alleged mistress.

After the album was released, fans went crazy trying to track down Becky. Fashion designer Rachel Roy was a suspect, as was Rita Ora.

But Amber here is saying that she's the woman Jay Z had his rumored affair with ... classy, right?

It really, really is not.

After the Beyhive came down hard on Amber, she deleted the tweet and made a strange video claiming that she'd been hacked, but she didn't seem all that sincere about it.

If we had to guess, we'd say she felt the need to make a joke to get herself a bit of attention and it backfired.

And according to a source who spoke to Hollywood Life, Beyonce herself isn't too thrilled by Amber's antics.

The source claims that Beyonce is "furious" about the tweet because people keep asking her about it "and the timing is the worst."

"She's in her last trimester with the twins and not supposed to be having any kind of stress," the insider explains, but "not she's got to deal with people whispering" about her husband hooking up with Amber Rose.

"She's trying to keep calm, but it's upsetting. The last thing any wife wants is to picture their husband with another woman."

"Beyonce hopes it was just a hack like Amber said," the source continues, "but she doesn't necessarily buy that excuse."

"She thinks it was done for attention and that's just shameful."

Isn't it though?

"Amber should know better," the insider concludes, "she's a mother too, it's just a horrible thing to do."

We're with Beyonce -- it really does seem like Amber is just doing this for attention. It wouldn't be the first time she went out of her way to get people to talk about her.

There's a small chance that she actually could be Becky. She did date Kanye back when he and Jay Z were close.